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The greatest common factor of 14, 31, 65, and 69 is 1. You can find this answer in a number of different ways.

  • First, you could notice that 31 is prime, and so its only factors are 1 and 31. Since 31 is not a factor of 19, you know that 1 is the only other possible common factor of the set.
  • If you like, you could instead find the answer by writing the prime factorization of each number in the set. Since there are no common factors other than 1, the GCF of the set is 1.
    The prime factorization of 14 is 2*7
    The prime factorization of 31 is 1*31
    The prime factorization of 65 is 5*13
    The prime factorization of 69 is 3*23
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7y ago
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8y ago

The GCF of 57, 65, and 77 is 1.

The factors of 57 are 1, 3, 19, and 57

The factors of 65 are 1, 5, 13, and 65

The factors of 77 are 1, 7, 11, and 77

So the GCF (65, 57, 77) = 1

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13y ago

Greatest common factor for 14 and 27 and 65 is 1.

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8y ago

The GCF is 1.

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7y ago

The GCF is 1.

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7y ago

The GCF is 1.

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7y ago

GCF(55, 27, 43, 14) = 1.

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7y ago

It is: 1

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Q: What is the greatest common factor of 14 31 65 and 69?
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